ORDER ORNITHOSAURIA. 



203 



as is beautifully shown in a specimen of the typical R. Muenstert, 

 of which a restoration is shown in the accompanying woodcut. 



Fig. 1099. — The skeleton and patagium of Scaphognathzis crassirostris according to the 

 restoration of Goldfuss ; from the Kimeridgian of Bavaria. Reduced. The presence of the first 

 digit in the manus is incorrect ; the tail should be long ; while the patagium should have been 

 more extended posteriorly, as in fig. 1098. 



This species was of comparatively small size ; but R. grandis, in 

 which the astragalus united with the tibia, attained considerably 

 larger dimensions. Rhamphocephalus, of the Lower Jurassic Stones- 



. — Restoration of RhainpJiorhynchus MuensteH (fihyllurus) ; from the Lowe 

 Kimeridgian of Bavaria. One-seventh natural size. (After Marsh.) 



field slate, is distinguished from the preceding genus by the form 

 of the teeth, and the great interorbital constriction of the cran- 

 ium. Dorygnathus, from the Upper Lias of Germany, appears to 



